From Longman Dictionary of Contemporary Englishold fool/bastard/bat etcold fool/bastard/bat etcspoken not politeDON'T LIKE used to talk very rudely about someone you do not likethe stupid old cow → old
Examples from the Corpus
old fool/bastard/bat etc• He was no more to her, he thought, than a tiresome old man, an old fool.• Look there that old fool Broom, slipped off to sleep.• An old fool if you like.• Am I to be troubled by a skinny old fool in mirror shades?• The old bats included a plastic, an aluminum and a wooden one.• She thought what an undecided old fool Phoebe was, but it made her outburst at the Frolic all the more courageous.• But then the old fool should have been a little less unwashed and boring. 